20 files changed, 400 insertions, 32 deletions

diff --git a/Zotlabs/Lib/Apps.php b/Zotlabs/Lib/Apps.php
index 6b87ac6cb..aa7e2282d 100644
--- a/Zotlabs/Lib/Apps.php
+++ b/Zotlabs/Lib/Apps.php
@@ -722,6 +722,9 @@ class Apps {
 		);
 
 		if($r) {
+                        $hookinfo = Array('uid'=>$uid,'deleted'=>$deleted,'cats'=>$cats,'apps'=>$r);
+			call_hooks('app_list',$hookinfo);
+			$r = $hookinfo['apps'];
 			for($x = 0; $x < count($r); $x ++) {
 				if(! $r[$x]['app_system'])
 					$r[$x]['type'] = 'personal';
diff --git a/Zotlabs/Module/Articles.php b/Zotlabs/Module/Articles.php
index d622b221a..7af1ab6b8 100644
--- a/Zotlabs/Module/Articles.php
+++ b/Zotlabs/Module/Articles.php
@@ -45,7 +45,7 @@ class Articles extends Controller {
 			return $o;
 		}
 
-		nav_set_selected(t('Articles'));
+		nav_set_selected('Articles');
 
 		head_add_link([ 
 			'rel'   => 'alternate',
diff --git a/Zotlabs/Module/Cdav.php b/Zotlabs/Module/Cdav.php
index 6737ac4ee..bff308dfa 100644
--- a/Zotlabs/Module/Cdav.php
+++ b/Zotlabs/Module/Cdav.php
@@ -1,12 +1,16 @@
 <?php
 namespace Zotlabs\Module;
 
+use App;
+use Zotlabs\Lib\Apps;
+use Zotlabs\Web\Controller;
+
 require_once('include/event.php');
 
 require_once('include/auth.php');
 require_once('include/security.php');
 
-class Cdav extends \Zotlabs\Web\Controller {
+class Cdav extends Controller {
 
 	function init() {
 
@@ -126,8 +130,18 @@ class Cdav extends \Zotlabs\Web\Controller {
 			$auth->setRealm(ucfirst(\Zotlabs\Lib\System::get_platform_name()) . 'CalDAV/CardDAV');
 
 			if (local_channel()) {
+
 				logger('loggedin');
-				$channel = \App::get_channel();
+
+				if((argv(1) == 'calendars') && (!Apps::system_app_installed(local_channel(), 'CalDAV'))) {
+					killme();
+				}
+
+				if((argv(1) == 'addressbooks') && (!Apps::system_app_installed(local_channel(), 'CardDAV'))) {
+					killme();
+				}
+
+				$channel = App::get_channel();
 				$auth->setCurrentUser($channel['channel_address']);
 				$auth->channel_id = $channel['channel_id'];
 				$auth->channel_hash = $channel['channel_hash'];
@@ -161,12 +175,15 @@ class Cdav extends \Zotlabs\Web\Controller {
 			$nodes = [
 				// /principals
 				new \Sabre\CalDAV\Principal\Collection($principalBackend),
+
 				// /calendars
 				new \Sabre\CalDAV\CalendarRoot($principalBackend, $caldavBackend),
+
 				// /addressbook
-				new \Sabre\CardDAV\AddressBookRoot($principalBackend, $carddavBackend),
+				new \Sabre\CardDAV\AddressBookRoot($principalBackend, $carddavBackend)
 			];
 
+
 			// The object tree needs in turn to be passed to the server class
 
 			$server = new \Sabre\DAV\Server($nodes);
@@ -204,7 +221,15 @@ class Cdav extends \Zotlabs\Web\Controller {
 		if(! local_channel())
 			return;
 
-		$channel = \App::get_channel();
+		if((argv(1) === 'calendar') && (! Apps::system_app_installed(local_channel(), 'CalDAV'))) {
+			return;
+		}
+
+		if((argv(1) === 'addressbook') && (! Apps::system_app_installed(local_channel(), 'CardDAV'))) {
+			return;
+		}
+
+		$channel = App::get_channel();
 		$principalUri = 'principals/' . $channel['channel_address'];
 
 		if(!cdav_principal($principalUri))
@@ -807,7 +832,25 @@ class Cdav extends \Zotlabs\Web\Controller {
 		if(!local_channel())
 			return;
 
-		$channel = \App::get_channel();
+		if((argv(1) === 'calendar') && (! Apps::system_app_installed(local_channel(), 'CalDAV'))) {
+			//Do not display any associated widgets at this point
+			App::$pdl = '';
+
+			$o = '<b>CalDAV App (Not Installed):</b><br>';
+			$o .= t('CalDAV capable calendar');
+			return $o;
+		}
+
+		if((argv(1) === 'addressbook') && (! Apps::system_app_installed(local_channel(), 'CardDAV'))) {
+			//Do not display any associated widgets at this point
+			App::$pdl = '';
+
+			$o = '<b>CardDAV App (Not Installed):</b><br>';
+			$o .= t('CalDAV capable addressbook');
+			return $o;
+		}
+
+		$channel = App::get_channel();
 		$principalUri = 'principals/' . $channel['channel_address'];
 
 		$pdo = \DBA::$dba->db;
@@ -874,7 +917,7 @@ class Cdav extends \Zotlabs\Web\Controller {
 			$o .= replace_macros(get_markup_template('cdav_calendar.tpl'), [
 				'$sources' => $sources,
 				'$color' => $color,
-				'$lang' => \App::$language,
+				'$lang' => App::$language,
 				'$first_day' => $first_day,
 				'$prev'	=> t('Previous'),
 				'$next'	=> t('Next'),
diff --git a/Zotlabs/Module/Invite.php b/Zotlabs/Module/Invite.php
index 359f99b3e..234802746 100644
--- a/Zotlabs/Module/Invite.php
+++ b/Zotlabs/Module/Invite.php
@@ -1,6 +1,10 @@
 <?php
 namespace Zotlabs\Module;
 
+use App;
+use Zotlabs\Lib\Apps;
+use Zotlabs\Web\Controller;
+
 /**
  * module: invite.php
  *
@@ -9,7 +13,7 @@ namespace Zotlabs\Module;
  */
 
 
-class Invite extends \Zotlabs\Web\Controller {
+class Invite extends Controller {
 
 	function post() {
 	
@@ -17,6 +21,10 @@ class Invite extends \Zotlabs\Web\Controller {
 			notice( t('Permission denied.') . EOL);
 			return;
 		}
+
+		if(! Apps::system_app_installed(local_channel(), 'Invite')) {
+			return;
+		}
 	
 		check_form_security_token_redirectOnErr('/', 'send_invite');
 	
@@ -57,7 +65,7 @@ class Invite extends \Zotlabs\Web\Controller {
 			else
 				$nmessage = $message;
 	
-			$account = \App::get_account();
+			$account = App::get_account();
 	
 			$res = z_mail(
 				[ 
@@ -95,6 +103,15 @@ class Invite extends \Zotlabs\Web\Controller {
 			return;
 		}
 
+		if(! Apps::system_app_installed(local_channel(), 'Invite')) {
+			//Do not display any associated widgets at this point
+			App::$pdl = '';
+
+			$o = '<b>Invite App (Not Installed):</b><br>';
+			$o .= t('Send email invitations to join this network');
+			return $o;
+		}
+
 		nav_set_selected('Invite');
 	
 		$tpl = get_markup_template('invite.tpl');
@@ -127,11 +144,11 @@ class Invite extends \Zotlabs\Web\Controller {
 				}
 			}
 	
-		$ob = \App::get_observer();
+		$ob = App::get_observer();
 		if(! $ob)
 			return $o;
 	
-		$channel = \App::get_channel();
+		$channel = App::get_channel();
 	
 		$o = replace_macros($tpl, array(
 			'$form_security_token' => get_form_security_token("send_invite"),
diff --git a/Zotlabs/Module/Lang.php b/Zotlabs/Module/Lang.php
index 0e5d85d05..9858beecd 100644
--- a/Zotlabs/Module/Lang.php
+++ b/Zotlabs/Module/Lang.php
@@ -1,13 +1,28 @@
 <?php
 namespace Zotlabs\Module;
 
+use App;
+use Zotlabs\Lib\Apps;
+use Zotlabs\Web\Controller;
 
-class Lang extends \Zotlabs\Web\Controller {
+class Lang extends Controller {
 
 	function get() {
+
+		if(local_channel()) {
+			if(! Apps::system_app_installed(local_channel(), 'Language')) {
+				//Do not display any associated widgets at this point
+				App::$pdl = '';
+
+				$o = '<b>Language App (Not Installed):</b><br>';
+				$o .= t('Change UI language');
+				return $o;
+			}
+		}
+
 		nav_set_selected('Language');
 		return lang_selector();
+
 	}
 	
-	
 }
diff --git a/Zotlabs/Module/Mood.php b/Zotlabs/Module/Mood.php
index ad29ec7e8..cceef5ffa 100644
--- a/Zotlabs/Module/Mood.php
+++ b/Zotlabs/Module/Mood.php
@@ -1,21 +1,29 @@
 <?php
 namespace Zotlabs\Module;
 
+use App;
+use Zotlabs\Lib\Apps;
+use Zotlabs\Web\Controller;
+
 require_once('include/security.php');
 require_once('include/bbcode.php');
 require_once('include/items.php');
 
 
 
-class Mood extends \Zotlabs\Web\Controller {
+class Mood extends Controller {
 
 	function init() {
 	
 		if(! local_channel())
 			return;
+
+		if(! Apps::system_app_installed(local_channel(), 'Mood')) {
+			return;
+		}
 	
 		$uid = local_channel();
-		$channel = \App::get_channel();
+		$channel = App::get_channel();
 		$verb = notags(trim($_GET['verb']));
 		
 		if(! $verb) 
@@ -60,7 +68,7 @@ class Mood extends \Zotlabs\Web\Controller {
 			$deny_gid      =  $channel['channel_deny_gid'];
 		}
 	
-		$poster = \App::get_observer();
+		$poster = App::get_observer();
 	
 		$mid = item_message_id();
 	
@@ -117,6 +125,15 @@ class Mood extends \Zotlabs\Web\Controller {
 			return;
 		}
 
+		if(! Apps::system_app_installed(local_channel(), 'Mood')) {
+			//Do not display any associated widgets at this point
+			App::$pdl = '';
+
+			$o = '<b>Mood App (Not Installed):</b><br>';
+			$o .= t('Set your current mood and tell your friends');
+			return $o;
+		}
+
 		nav_set_selected('Mood');
 
 		$parent = ((x($_GET,'parent')) ? intval($_GET['parent']) : '0');
diff --git a/Zotlabs/Module/Poke.php b/Zotlabs/Module/Poke.php
index d13ec5ced..46dcf6dd3 100644
--- a/Zotlabs/Module/Poke.php
+++ b/Zotlabs/Module/Poke.php
@@ -1,6 +1,10 @@
 <?php
 namespace Zotlabs\Module; /** @file */
 
+use App;
+use Zotlabs\Lib\Apps;
+use Zotlabs\Web\Controller;
+
 /**
  *
  * Poke, prod, finger, or otherwise do unspeakable things to somebody - who must be a connection in your address book
@@ -18,15 +22,19 @@ namespace Zotlabs\Module; /** @file */
 require_once('include/items.php');
 
 
-class Poke extends \Zotlabs\Web\Controller {
+class Poke extends Controller {
 
 	function init() {
 	
 		if(! local_channel())
 			return;
+
+		if(! Apps::system_app_installed(local_channel(), 'Poke')) {
+			return;
+		}
 	
 		$uid = local_channel();
-		$channel = \App::get_channel();
+		$channel = App::get_channel();
 	
 		$verb = notags(trim($_REQUEST['verb']));
 		
@@ -150,6 +158,15 @@ class Poke extends \Zotlabs\Web\Controller {
 			return;
 		}
 
+		if(! Apps::system_app_installed(local_channel(), 'Poke')) {
+			//Do not display any associated widgets at this point
+			App::$pdl = '';
+
+			$o = '<b>Poke App (Not Installed):</b><br>';
+			$o .= t('Poke somebody in your addressbook');
+			return $o;
+		}
+
 		nav_set_selected('Poke');
 	
 		$name = '';
diff --git a/Zotlabs/Module/Settings/Network.php b/Zotlabs/Module/Settings/Network.php
new file mode 100644
index 000000000..14a118f2c
--- /dev/null
+++ b/Zotlabs/Module/Settings/Network.php
@@ -0,0 +1,128 @@
+<?php
+
+namespace Zotlabs\Module\Settings;
+
+
+class Network {
+
+	function post() {
+		check_form_security_token_redirectOnErr('/settings/network', 'settings_network');
+	
+		$features = self::get_features();
+
+		foreach($features as $f) {
+			$k = $f[0];
+			if(array_key_exists("feature_$k",$_POST))
+				set_pconfig(local_channel(),'feature',$k, (string) $_POST["feature_$k"]);
+			else
+				set_pconfig(local_channel(),'feature', $k, '');
+		}
+		
+		build_sync_packet();
+		return;
+	}
+
+	function get() {
+		
+		$features = self::get_features();
+
+		foreach($features as $f) {
+			$arr[] = array('feature_' . $f[0],$f[1],((intval(feature_enabled(local_channel(),$f[0]))) ? "1" : ''),$f[2],array(t('Off'),t('On')));
+		}
+
+		$tpl = get_markup_template("settings_module.tpl");
+
+		$o .= replace_macros($tpl, array(
+			'$action_url' => 'settings/network',
+			'$form_security_token' => get_form_security_token("settings_network"),
+			'$title' => t('Activity Settings'),
+			'$features'  => $arr,
+			'$baseurl'   => z_root(),
+			'$submit'    => t('Submit'),
+		));
+	
+		return $o;
+	}
+
+	function get_features() {
+		$arr = [
+
+			[
+				'archives',       
+				t('Search by Date'),			
+				t('Ability to select posts by date ranges'),
+				false,
+				get_config('feature_lock','archives')
+			],
+
+			[
+				'savedsearch',    
+				t('Saved Searches'),			
+				t('Save search terms for re-use'),
+				false,
+				get_config('feature_lock','savedsearch')
+			],
+
+			[
+				'order_tab',
+				t('Alternate Stream Order'),
+				t('Ability to order the stream by last post date, last comment date or unthreaded activities'),
+				false,
+				get_config('feature_lock','order_tab')
+			],
+
+			[
+				'name_tab',
+				t('Contact Filter'),
+				t('Ability to display only posts of a selected contact'),
+				false,
+				get_config('feature_lock','name_tab')
+			],
+
+			[
+				'forums_tab',         
+				t('Forum Filter'),				
+				t('Ability to display only posts of a specific forum'),
+				false,
+				get_config('feature_lock','forums_tab')
+			],
+
+			[
+				'personal_tab',
+				t('Personal Posts Filter'),
+				t('Ability to display only posts that you\'ve interacted on'),
+				false,
+				get_config('feature_lock','personal_tab')
+			],
+
+			[
+				'affinity',       
+				t('Affinity Tool'),			    
+				t('Filter stream activity by depth of relationships'),
+				false,
+				get_config('feature_lock','affinity')
+			],
+
+			[
+				'suggest',    	
+				t('Suggest Channels'),			
+				t('Show friend and connection suggestions'),
+				false,
+				get_config('feature_lock','suggest')
+			],
+
+			[
+				'connfilter',
+				t('Connection Filtering'),
+				t('Filter incoming posts from connections based on keywords/content'),
+				false,
+				get_config('feature_lock','connfilter')
+			]
+
+		];
+
+		return $arr;
+
+	}
+
+}
diff --git a/Zotlabs/Module/Setup.php b/Zotlabs/Module/Setup.php
index a3832d156..50b40834b 100644
--- a/Zotlabs/Module/Setup.php
+++ b/Zotlabs/Module/Setup.php
@@ -526,14 +526,21 @@ class Setup extends \Zotlabs\Web\Controller {
 			$ck_funcs[0]['status'] = false;
 			$ck_funcs[0]['help'] = t('Error: libCURL PHP module required but not installed.');
 		}
-		if(! function_exists('imagecreatefromjpeg')) {
+		if((! function_exists('imagecreatefromjpeg')) || (! class_exists('Imagick'))) {
 			$ck_funcs[1]['status'] = false;
-			$ck_funcs[1]['help'] = t('Error: GD graphics PHP module with JPEG support required but not installed.');
+			$ck_funcs[1]['help'] = t('Error: GD PHP module with JPEG support or ImageMagick graphics library required but not installed.');
 		}
 		if(! function_exists('openssl_public_encrypt')) {
 			$ck_funcs[2]['status'] = false;
 			$ck_funcs[2]['help'] = t('Error: openssl PHP module required but not installed.');
 		}
+		if(class_exists('PDO')) {
+			$x = PDO::getAvailableDrivers();
+			if((! in_array('mysql',$x)) && (! in_array('pgsql',$x))) {
+				$ck_funcs[3]['status'] = false;
+				$ck_funcs[3]['help'] = t('Error: PDO database PHP module missing a driver for either mysql or pgsql.');
+			}
+		}
 		if(! class_exists('PDO')) {
 			$ck_funcs[3]['status'] = false;
 			$ck_funcs[3]['help'] = t('Error: PDO database PHP module required but not installed.');
diff --git a/Zotlabs/Update/_1220.php b/Zotlabs/Update/_1220.php
new file mode 100644
index 000000000..adcb8c9c6
--- /dev/null
+++ b/Zotlabs/Update/_1220.php
@@ -0,0 +1,47 @@
+<?php
+
+namespace Zotlabs\Update;
+
+class _1220 {
+
+	function run() {
+
+		if(ACTIVE_DBTYPE == DBTYPE_POSTGRES) {
+			$r1 = q("CREATE TABLE listeners (
+  id serial NOT NULL,
+  target_id text NOT NULL,
+  portable_id text NOT NULL,
+  ltype smallint NOT NULL DEFAULT '0',
+  PRIMARY KEY (id)
+)");
+
+			$r2 = q("create index \"target_id_idx\" on listeners (\"target_id\")");
+			$r3 = q("create index \"portable_id_idx\" on listeners (\"portable_id\")");
+			$r4 = q("create index \"ltype_idx\" on listeners (\"ltype\")");
+
+			$r = $r1 && $r2 && $r3 && $r4;
+
+		}
+
+		if(ACTIVE_DBTYPE == DBTYPE_MYSQL) {
+			$r = q("CREATE TABLE IF NOT EXISTS listeners (
+  id int(11) NOT NULL AUTO_INCREMENT,
+  target_id varchar(191) CHARACTER SET utf8mb4 NOT NULL DEFAULT '',
+  portable_id varchar(191) CHARACTER SET utf8mb4 NOT NULL DEFAULT '',
+  ltype int(11) NOT NULL DEFAULT '0',
+  PRIMARY KEY (id),
+  KEY target_id (target_id),
+  KEY portable_id (portable_id),
+  KEY ltype (ltype)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8");
+
+		}
+
+		if($r) {
+			return UPDATE_SUCCESS;
+		}
+		return UPDATE_FAILED;
+
+	}
+
+}
diff --git a/Zotlabs/Web/SubModule.php b/Zotlabs/Web/SubModule.php
index 7c8404201..763a55d86 100644
--- a/Zotlabs/Web/SubModule.php
+++ b/Zotlabs/Web/SubModule.php
@@ -2,6 +2,8 @@
 
 namespace Zotlabs\Web;
 
+use Zotlabs\Extend\Route;
+
 /*
  * @brief
  *
@@ -31,9 +33,23 @@ class SubModule {
 
 		$filename = 'Zotlabs/Module/' . ucfirst(argv(0)) . '/'. ucfirst(argv($whicharg)) . '.php';
 		$modname = '\\Zotlabs\\Module\\' . ucfirst(argv(0)) . '\\' . ucfirst(argv($whicharg));
+
 		if(file_exists($filename)) {
 			$this->controller = new $modname();
 		}
+
+		$routes = Route::get();
+
+		if($routes) {
+			foreach($routes as $route) {
+				if(is_array($route) && strtolower($route[1]) === strtolower(argv(0)) . '/' . strtolower(argv($whicharg))) {
+					include_once($route[0]);
+					if(class_exists($modname)) {
+						$this->controller = new $modname;
+					}
+				}
+			}
+		}
 	}
 
 	/**
@@ -43,6 +59,7 @@ class SubModule {
 	 * @return boolean|mixed
 	 */
 	function call($method) {
+
 		if(! $this->controller)
 			return false;
 
diff --git a/boot.php b/boot.php
index 93963648e..e8c1355e8 100755
--- a/boot.php
+++ b/boot.php
@@ -54,7 +54,7 @@ define ( 'STD_VERSION',             '3.7.3' );
 define ( 'ZOT_REVISION',            '6.0a' );
 
 
-define ( 'DB_UPDATE_VERSION',       1219 );
+define ( 'DB_UPDATE_VERSION',       1220 );
 
 define ( 'PROJECT_BASE',   __DIR__ );
 
@@ -424,6 +424,7 @@ define ( 'TERM_BOOKMARK',     8 );
 define ( 'TERM_HIERARCHY',    9 );
 define ( 'TERM_COMMUNITYTAG', 10 );
 define ( 'TERM_FORUM',        11 );
+define ( 'TERM_EMOJI',        12 );
 
 define ( 'TERM_OBJ_POST',    1 );
 define ( 'TERM_OBJ_PHOTO',   2 );
diff --git a/include/attach.php b/include/attach.php
index 202412263..4db5bc435 100644
--- a/include/attach.php
+++ b/include/attach.php
@@ -1428,6 +1428,8 @@ function attach_delete($channel_id, $resource, $is_photo = 0) {
 
 	if(! $r) {
 		attach_drop_photo($channel_id,$resource);
+                $arr = ['channel_id' => $channel_id, 'resource' => $resource, 'is_photo'=>$is_photo];
+                call_hooks("attach_delete",$arr);
 		return;
 	}
 
@@ -1486,6 +1488,9 @@ function attach_delete($channel_id, $resource, $is_photo = 0) {
 		intval($channel_id)
 	);
 
+        $arr = ['channel_id' => $channel_id, 'resource' => $resource, 'is_photo'=>$is_photo];
+        call_hooks("attach_delete",$arr);
+
 	file_activity($channel_id, $object, $object['allow_cid'], $object['allow_gid'], $object['deny_cid'], $object['deny_gid'], 'update', true);
 
 	return;
diff --git a/include/import.php b/include/import.php
index 91a26b23b..0fc24a26f 100644
--- a/include/import.php
+++ b/include/import.php
@@ -93,7 +93,8 @@ function import_channel($channel, $account_id, $seize, $newname = '') {
 		'channel_w_comment',  'channel_w_mail',      'channel_w_like',    'channel_w_tagwall',
 		'channel_w_chat',     'channel_w_storage',   'channel_w_pages',   'channel_a_republish',
 		'channel_a_delegate', 'perm_limits',         'channel_password',  'channel_salt',
-		'channel_moved'
+		'channel_moved',      'channel_primary',     'channel_removed',   'channel_deleted',
+		'channel_system'
 	];
 
 	$clean = array();
diff --git a/include/items.php b/include/items.php
index b0f6a89cf..c817c5afb 100755
--- a/include/items.php
+++ b/include/items.php
@@ -3997,6 +3997,7 @@ function zot_feed($uid, $observer_hash, $arr) {
 	$result = array();
 	$mindate = null;
 	$message_id = null;
+	$wall = true;
 
 	require_once('include/security.php');
 
@@ -4008,6 +4009,10 @@ function zot_feed($uid, $observer_hash, $arr) {
 		$message_id = $arr['message_id'];
 	}
 
+	if(array_key_exists('wall',$arr)) {
+		$wall = intval($arr['wall']);
+	}
+
 	if(! $mindate)
 		$mindate = NULL_DATE;
 
@@ -4036,6 +4041,10 @@ function zot_feed($uid, $observer_hash, $arr) {
 		$limit = '';
 	}
 
+	if($wall) {
+		$sql_extra .= " and item_wall = 1 ";
+	}
+
 
 	$items = [];
 
@@ -4048,7 +4057,6 @@ function zot_feed($uid, $observer_hash, $arr) {
 
 		$r = q("SELECT parent, postopts FROM item
 			WHERE uid IN ( %s )
-			AND item_wall = 1
 			AND item_private = 0
 			$item_normal
 			$sql_extra ORDER BY created ASC $limit",
@@ -4058,7 +4066,6 @@ function zot_feed($uid, $observer_hash, $arr) {
 	else {
 		$r = q("SELECT parent, postopts FROM item
 			WHERE uid = %d
-			AND item_wall = 1
 			$item_normal
 			$sql_extra ORDER BY created ASC $limit",
 			intval($uid)
diff --git a/include/text.php b/include/text.php
index 8a07dc113..4b5442985 100644
--- a/include/text.php
+++ b/include/text.php
@@ -37,7 +37,13 @@ function replace_macros($s, $r) {
 	call_hooks('replace_macros', $arr);
 
 	$t = App::template_engine();
-	$output = $t->replace_macros($arr['template'], $arr['params']);
+
+        try {
+	        $output = $t->replace_macros($arr['template'], $arr['params']);
+        } catch (Exception $e) {
+                logger("Unable to render template: ",$e->getMessage());
+                $output = "<h3>ERROR: there was an error creating the output.</h3>";
+        }
 
 	return $output;
 }
diff --git a/include/zot.php b/include/zot.php
index 7e9ee3823..e31d650d2 100644
--- a/include/zot.php
+++ b/include/zot.php
@@ -3571,13 +3571,13 @@ function process_channel_sync_delivery($sender, $arr, $deliveries) {
 			}
 
 			$disallowed = [
-				'channel_id',        'channel_account_id',  'channel_primary',   'channel_prvkey',
-				'channel_address',   'channel_notifyflags', 'channel_removed',   'channel_deleted',
-				'channel_system',    'channel_r_stream',    'channel_r_profile', 'channel_r_abook',
-				'channel_r_storage', 'channel_r_pages',     'channel_w_stream',  'channel_w_wall',
-				'channel_w_comment', 'channel_w_mail',      'channel_w_like',    'channel_w_tagwall',
-				'channel_w_chat',    'channel_w_storage',   'channel_w_pages',   'channel_a_republish',
-				'channel_a_delegate'
+				'channel_id',         'channel_account_id',  'channel_primary',   'channel_prvkey',
+				'channel_address',    'channel_notifyflags', 'channel_removed',   'channel_deleted',
+				'channel_system',     'channel_r_stream',    'channel_r_profile', 'channel_r_abook',
+				'channel_r_storage',  'channel_r_pages',     'channel_w_stream',  'channel_w_wall',
+				'channel_w_comment',  'channel_w_mail',      'channel_w_like',    'channel_w_tagwall',
+				'channel_w_chat',     'channel_w_storage',   'channel_w_pages',   'channel_a_republish',
+				'channel_a_delegate', 'channel_moved'
 			];
 
 			$clean = array();
diff --git a/install/schema_mysql.sql b/install/schema_mysql.sql
index 7fd2cfea8..9b78ae8d4 100644
--- a/install/schema_mysql.sql
+++ b/install/schema_mysql.sql
@@ -736,6 +736,17 @@ CREATE TABLE IF NOT EXISTS `likes` (
   KEY `target_id` (`target_id`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
 
+CREATE TABLE IF NOT EXISTS listeners (
+  id int(11) NOT NULL AUTO_INCREMENT,
+  target_id varchar(191) CHARACTER SET utf8mb4 NOT NULL DEFAULT '',
+  portable_id varchar(191) CHARACTER SET utf8mb4 NOT NULL DEFAULT '',
+  ltype int(11) NOT NULL DEFAULT '0',
+  PRIMARY KEY (id),
+  KEY target_id (target_id),
+  KEY portable_id (portable_id),
+  KEY ltype (ltype)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
 CREATE TABLE IF NOT EXISTS `mail` (
   `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
   `convid` int(10) unsigned NOT NULL DEFAULT 0 ,
diff --git a/install/schema_postgres.sql b/install/schema_postgres.sql
index 68c65c830..7f118646e 100644
--- a/install/schema_postgres.sql
+++ b/install/schema_postgres.sql
@@ -718,6 +718,17 @@ create index "likes_i_mid" on likes ("i_mid");
 create index "likes_verb" on likes ("verb");
 create index "likes_target_type" on likes ("target_type");
 create index "likes_target_id" on likes ("target_id");
+CREATE TABLE listeners (
+  id serial NOT NULL,
+  target_id text NOT NULL,
+  portable_id text NOT NULL,
+  ltype smallint NOT NULL DEFAULT '0',
+  PRIMARY KEY (id)
+);
+create index "target_id_idx" on listeners ("target_id");
+create index "portable_id_idx" on listeners ("portable_id");
+create index "ltype_idx" on listeners ("ltype");
+
 CREATE TABLE "mail" (
   "id" serial  NOT NULL,
   "convid" bigint  NOT NULL DEFAULT '0',
diff --git a/view/tpl/settings_module.tpl b/view/tpl/settings_module.tpl
new file mode 100755
index 000000000..b2ac5462f
--- /dev/null
+++ b/view/tpl/settings_module.tpl
@@ -0,0 +1,15 @@
+<div class="generic-content-wrapper">
+	<div class="section-title-wrapper">
+		<h2>{{$title}}</h2>
+	</div>
+	<div class="section-content-wrapper">
+		<form action="{{$action_url}}" method="post" autocomplete="off">
+		<input type='hidden' name='form_security_token' value='{{$form_security_token}}'>
+		{{foreach $features as $feature}}
+		{{include file="field_checkbox.tpl" field=$feature}}
+		{{/foreach}}
+		<div class="settings-submit-wrapper" >
+			<button type="submit" name="submit" class="btn btn-primary">{{$submit}}</button>
+		</div>
+	</div>
+</div>